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[173] Citation: J. Dosher, B. Hannaford, 'Human Interaction with Small Haptic Effects,'
PRESENCE, vol. 14, pp. 329-344, June 2005.
Abstract
This research investigated the ability of subjects to detect small
haptic effects, and the associated gains in task performance with
various confgurations of haptic stimulus. Variations in amplitude,
shape, and pulse duration were studied. An adaptive thresholding
method was used to obtain detection thresholds for actively explored
haptic icons ranging in size from 3 to 5 mm, smooth vs rough actively
explored icons, and force pulses of 100 to 150 ms pulse duration.
Using Fitts' law. Rough (saw-tooth) haptic icons are more easily
detected by a human subject than smooth (sinusoidal) icons of the same
size, by almost a factor of two. Mean subject performance, as measured
by Fitts' information processing rate and clicks-per-minute, improved
with the amplitude of haptic stimulus.
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Updated: Tue Aug 19 09:16:09 2008
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